Product Name : MER Spring Collet Chuck
SK Series DIN69871A
Product Description
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  • MER has more contact area between holder and collet to make better radial cutting force than standard ER.
  • Special design of MER High speed bearing nut, the clamping power is better than Standard ER type.
  • MER system are suitable for high speed and high precision cutting.
  • Suitable to use with ER-E type collet, the cutting condition will be excellent.
  • Also could be used with standard ER collet, the clamping range change to 0.5mm from 1mm Ex. MER20 holder + ER20 06 collet => Clamping range: 6~5.5mm
  • WER..G bearing wrench must be ordered separately.

***Compare***

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ER Holder + ER Collet

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MER Holder + ER Collet

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MER Holder + ER-E Type Collet


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  • The design of deeper gauge line for MER holder. Recommend using ER-E type collet into the body (holder). The increasing length of contact area between collet and holder for improved clamping force.
Model No.Clamping RangeDLWrenchWeight (kg)
SK40 MER16-070/100 1~10 30 70/100 WER16G 1.40/1.50
SK40 MER16-150 1~10 30 150 WER16G 1.70
SK40 MER20-080/100 1~13 35 80/100 WER20G 1.50/1.60
SK40 MER20-150 1~13 35 150 WER20G 1.90
SK40 MER25-080/100 2~16 40 80/100 WER25G 1.60/1.80
SK40 MER25-150 2~16 40 150 WER25G 2.10
SK40 MER32-070 2~20 50 70 WER32G 1.50
SK40 MER32-100 2~20 50 100 WER32G 1.90
SK50 MER16-100/150 1~10 30 100/150 WER16G 3.30/3.60
SK50 MER20-100/150 1~13 35 100/150 WER20G 3.50/3.80
SK50 MER25-100/150 2~16 40 100/150 WER25G 3.60/3.90
SK50 MER32-100/150 2~20 50 100/150 WER32G 3.60/3.90

Unit: mm